Charles h



C. H. MORGAN.

(NoModel.)

JOURNAL BOX.

Patented SeptfSO, 1890.

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UNITED l STATES CHARLES n. MORGAN,

PATENT OFFICE.

OF BUFFALO, NEW YORK, ASISI'GNOR TO WILLIAM BAYNES, OF SAME PLACE. I

SPECIFICATION forming part of lLetters Patent No. 437,364, datei September 30., 1890.

Application tiled August 22, 1889;

To all whom it may concern:

Be it known that I, CHARLES H. MORGAN, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented new and useful Improvements in Journal-Boxes, of which the following is a specification.

This invention relates to the journal-boxes employed for supporting the shafts of streetsweeping machines having rotatory cylindrical brushes. These brushesare usually arranged below the driving-shaft and are connected therewith by gearing, so as to rotate in the opposite direction to the driving-shaft and sweep the dirtforwardly. This sweeping of the dirt in front of the brush causes large volumes of. dust to rise, a considerable portion of which settleslupon the parts of the machine above the brush and enters between the journals and their bearings. The latter consequently wear rapidly and are required to be frequently renewed.

The object of my invention is to improve the construction of these bearings or journalboxes, so that the journals can be kept properly lubricated and the worn-out parts can be easily renewed.

In the accompanying drawings, Figure 1 represents a side elevation of a street-sweeping machine provided with my improved journal-boxes, one of the driving-shafts being removed. Fig. 2 is a fragmentary cross-sec-` tion of the machine, on an enlarged scale, showing the driving-shaft and its bearings, one of said bearings being shown in elevation and one in section. Figs. 3 and 4 are cross-sections in lines m and y y, respectively, Fig. 2. Fig. 5 is a transverse section of the front steering-wheel in line z z, Fig. 1. Fig. 6 is a fragmentary section showing a modified construction of the bearing.

Like letters of reference refer to like parts in the several figures.

A represents the frame of a street-sweeping machine; B, the driving-wheels; Cthe driving-shaft upon which the wheels B are mounted, and D the rotary brush arranged below the driving-shaft and suspended from the frameby hangers. The brush D is driven longitudinal edges of the filling-piece.

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I by a chain d from a counterihaft d', which 5o latter is connected with the driving-shaft by gear-wheels d2 d3.

E represents the bearings or boxes, which support the drivingshaftC and which are sccured to the under side of the frame A. The bearings E are each composed of a cylindrical sleeve e, which is provided on its outer and upper side with an enlargement c', having horizontal top flanges e2. These iianges are secured to the under side of the frame A by 6o bolts f. On the inner side 4of the enlargement e and extending upwardly therefrom is an oil-chamber g. Thislatter is arranged on the inner side of the adjacent side pieces vof' the frame, and its top is located above the frame and provided with a hinged cover g. The oil-chamber is cast in one piece with the sleeve and communicates at its bottom with a cavity h, formed longitudinally in the enlargement e of the sleeve above the bore thereof.

I represents a semi-cylindrical bushing arranged removably in the bore of the sleeve and surrounding the upper half of the shaft C. This bushing extends throughout the length of the sleeve and is provided at its inner end with a flange or rim e', which bears 'against the inner end of the sleeve and holds the bushing against outward movement. The bushing is held against inward movement by a collar i', surrounding the shaft O, held by a 8o set-screw i2, and bearing against the inner end of the bushing. Vhen it is desired to rel move the bushing, the set-screw 2 is loosened and the collar e" slid inwardly upon the shaft away from the rim, when the bushing can be readily withdrawn from the sleeve. The bushing is held from turning in the bore of the sleeve by a filling-piece I of semi-cylindrical form secured in the bore of the sleeve below the shaft by rivets 3, so that the longi- 9.o tudinal edges of the bushing rest against rlte e bushing I and filling-piece I form together a cylindrical bearing surrounding the shaft and inclosed by the sleeve. 9

j represents oil-passages formed in the bushing I and through which the oil contained in the cavity h above thebushing passes to the shaft C. The chamber g and cavity 71', are preferably filled with cotton waste or other suitable absorbent material which will hold a proper supply of oil.

All of the journals of the machine are provided with similar bearings or boxes having a removable semi-cylindrical bushing and an oil-chamber above the same.

The strain upon the driving-shaft is principally in a downward directiomeaused by the Weight of the frame and parts secured thereto. The wear upon the bearings of this shaft is consequently in the upper halves of the bearings, and the removable bushings are therefore arranged inthe upper portions of these sleeves. When the strain is in a different directiornthe bushings are arranged in these parts of the sleeves in which the wear takes place.

By making the illing-piece I separate from the sleeve of the bearing the bore of the sleeve can be bored out and the filling-piece be then firmly secured in the sleeve in the proper position. This prevents the fillingpiece from being disturbed afterward in makthe removable' bushing is held against turning in the sleeve, substantially as set forth.

2. The combination, with the sleeve of the bearing provided in its bore with a semi-cy lindrical filling-piece permanently secured in the sleeve and .a removable rsemi-cylindrical bushing bearing with its longitudinal edges against the filling-piece, of an upwardly-extending enlargement formed in the sleeve and provided with a longitudinal cavity or recess above the bushing, and avertical oil-chamber formed on one sidevof said enlargel'nent and communicating with said cavity or recess, substantially as set forth.

3. The combination, Vwith the sleeve of the bearing provided above the journal or shaft With an enlargement forming an oil-chamber and a recess or cavity opening into the bore of the sleeve and communicating with said oil-chamber, of a semi-cylindrical filling-piece secured in the bore of the sleeve, a removable semi-eylindrical bushing, also arranged in the bore of the sleeve with its longitudinal edges bearing against the illing-piece, oil-passages formed in the bushing for the escape of the oil from the cavity or recess to the journal, a iiange formed on one end of the bushing and bearing against the sleeve, and an adjustable collar secured to the journal and bearing against theV end of the bushing, substantially as set forth.

Witness my hand this 19th day of August, 1889.

CHARLES H. MORGAN.

Witnesses:

JNO. J. BONNER, FRED. C. GEYER. 

